Fix build against xorg-server >= 1.20.

Patch taken from upstream:
https://cgit.freedesktop.org/xorg/driver/xf86-video-savage/commit/?id=0ece556daa8a88771b669d8104396abd9166d2d0

diff --git a/src/savage_driver.c b/src/savage_driver.c
index 58a294d..3cda923 100644
--- a/src/savage_driver.c
+++ b/src/savage_driver.c
@@ -2034,8 +2034,6 @@ static Bool SavagePreInit(ScrnInfoPtr pScrn, int flags)
     xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Detected current MCLK value of %1.3f MHz\n",
 	       mclk / 1000.0);
 
-    pScrn->maxHValue = 2048 << 3;	/* 11 bits of h_total 8-pixel units */
-    pScrn->maxVValue = 2048;		/* 11 bits of v_total */
     pScrn->virtualX = pScrn->display->virtualX;
     pScrn->virtualY = pScrn->display->virtualY;
 
@@ -3637,6 +3635,14 @@ static ModeStatus SavageValidMode(SCRN_ARG_TYPE arg, DisplayModePtr pMode,
        (pMode->VDisplay > psav->PanelY)))
 	    return MODE_PANEL;
 
+    /* 11 bits of h_total 8-pixel units */
+    if (pMode->HTotal > (2048 << 3))
+	return MODE_BAD_HVALUE;
+
+    /* 11 bits of v_total */
+    if (pMode->VTotal > 2048)
+	return MODE_BAD_VVALUE;
+
     if (psav->UseBIOS) {
 	refresh = SavageGetRefresh(pMode);
         return (SavageMatchBiosMode(pScrn,pMode->HDisplay,
nu/services/sound.scm?id=39e9393b360160ca22d07305aadd6266a7b75f85'>tree</a><a href='/guix/commit/gnu/services/sound.scm?id=39e9393b360160ca22d07305aadd6266a7b75f85'>commit</a><a href='/guix/diff/gnu/services/sound.scm?id=39e9393b360160ca22d07305aadd6266a7b75f85'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/services/sound.scm'>
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<div class='path'>path: <a href='/guix/log/?id=39e9393b360160ca22d07305aadd6266a7b75f85'>root</a>/<a href='/guix/log/gnu?id=39e9393b360160ca22d07305aadd6266a7b75f85'>gnu</a>/<a href='/guix/log/gnu/services?id=39e9393b360160ca22d07305aadd6266a7b75f85'>services</a>/<a href='/guix/log/gnu/services/sound.scm?id=39e9393b360160ca22d07305aadd6266a7b75f85'>sound.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/services/sound.scm?id=39e9393b360160ca22d07305aadd6266a7b75f85&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-09-25 09:34:36 +0200'>2021-09-25</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=719bbcc15e2216b59bde34f297b92ceb9d349ce0'>Update copyright assignments for Liliana Marie Prikler.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/guix.texi: Update copyright name for Liliana Marie Prikler.
* gnu/packages/build-tools.scm: Update copyright name and email for Liliana
Marie Prikler.
* gnu/packages/convmv.scm: Likewise.
* gnu/packages/emacs-xyz.scm: Likewise.
* gnu/packages/emacs.scm: Likewise.
* gnu/packages/esolangs.scm: Likewise.
* gnu/packages/game-development.scm: Likewise.
* gnu/packages/games.scm: Likewise.
* gnu/packages/gnome-xyz.scm: Likewise.
* gnu/packages/gnome.scm: Likewise.
* gnu/packages/gstreamer.scm: Likewise.
* gnu/packages/guile-xyz.scm: Likewise.
* gnu/packages/minetest.scm: Likewise.
* gnu/packages/music.scm: Likewise.
* gnu/packages/patches/minetest-add-MINETEST_MOD_PATH.patch: Likewise.
* gnu/packages/patches/ppsspp-disable-upgrade-and-gold.patch: Likewise.
* gnu/packages/patches/webkitgtk-bind-all-fonts.patch: Likewise.
* gnu/packages/python-xyz.scm: Likewise.
* gnu/packages/unicode.scm: Likewise.
* gnu/packages/xorg.scm: Likewise.
* gnu/services/sound.scm: Likewise.
* guix/build-system/renpy.scm: Likewise.
* guix/build/emacs-utils.scm: Likewise.
* guix/build/renpy-build-system.scm: Likewise.
</span></span></td><td>Liliana Marie Prikler</td></tr>
<tr><td><span title='2020-05-06 22:49:55 +0200'>2020-05-06</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=3ed94ed8c2d1d0befc99ef2740b6fb9f717207db'>services: Do not use symbolic links in PulseAudio variables.</a><span class='msg-avail'>...<span class='msg-tooltip'>This addresses &lt;https://bugs.gnu.org/40837&gt; by making these configuration
files more easily accessible within the WebKitGTK sandbox.

* gnu/services/sound.scm (pulseaudio-environment): Move below
PULSEAUDIO-CONF-ENTRY.  Instantiate PULSE_CONFIG and PULSE_CLIENTCONFIG
entries directly instead of referring to /etc/pulse.
(pulseaudio-etc): Do not create /etc/pulse/client.conf and /etc/pulse/daemon.conf.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-01-11 18:18:51 +0100'>2020-01-11</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=f1022fbf2f16b0c9ae9fa0f8af4e61e035fec4cf'>services: Split ladspa-service-type from pulseaudio-service-type.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sound.scm (ladspa-configuration): New record.
(ladspa-environment): New procedure.
(ladspa-service-type): New service type.
(pulseaudio-environment): Remove LADSPA_PATH.
* doc/guix.texi: Adjust documentation.

Signed-off-by: Marius Bakke &lt;mbakke@fastmail.com&gt;
</span></span></td><td>Leo Prikler</td></tr>
<tr><td><span title='2020-01-11 18:18:51 +0100'>2020-01-11</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=f6f918113052fe781fa7a1c4c6b666b5aa57c834'>services: pulseaudio-configuration: Set flat-volumes to no.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sound (pulseaudio-configuration) [daemon-conf]: Disable
flat-volumes, which causes unpleasant experiences to users when applications
inadvertently max out the system volume (e.g. as in #38172).

Signed-off-by: Marius Bakke &lt;mbakke@fastmail.com&gt;
</span></span></td><td>Leo Prikler</td></tr>
<tr><td><span title='2020-01-11 18:18:50 +0100'>2020-01-11</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=f547426200d5547268d4a4a8f51c913072fa622f'>services: Add pulseaudio-configuration.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sound (&lt;pulseaudio-configuration&gt;): New record.
(pulseaudio-etc): New procedure.
(pulseaudio-environment): Add PULSE_CONFIG and PULSE_CLIENTCONFIG.
(pulseaudio-service-type): Update accordingly.

Signed-off-by: Marius Bakke &lt;mbakke@fastmail.com&gt;
</span></span></td><td>Leo Prikler</td></tr>
<tr><td><span title='2020-01-08 10:21:45 +0300'>2020-01-08</span></td><td><a href='/guix/commit/gnu/services/sound.scm?id=a66ee82a05d8ff1ef7c5ff9ac7723cb32fc4e22a'>services: Add pulseaudio service.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/sound.scm (pulseaudio-environment): New procedure.
(pulseaudio-service-type): New variable.
* doc/guix.texi (Sound Services): Document it.
</span></span></td><td>Oleg Pykhalov</td></tr>